# 4030 18th Avenue, Brooklyn

Mixed use · 2 units · built 2020 · Block 5411, Lot 1.

On Umarelli: https://umarelli.org/nyc/3054110001/4030-18-avenue

More construction in Ocean Parkway: https://umarelli.org/nyc/brooklyn/ocean-parkway.md

## Building permits

- Alteration, filed Nov 11, 2025, described as “Suspended Scaffold Installation for Facade Restoration and Inspection”
- Alteration, filed Sep 16, 2025, described as “Installation of a suspended scaffold for Facade Inspection and repair as per plan submitted. No change to egress or occupancy.”
- No Work, filed Jul 14, 2025
- No Work, filed Jul 14, 2025
- Alteration, filed Jun 30, 2025, estimated cost $3K, described as “Installation of a temporarily Supported Scaffold and the Site-Specific Engineered Enclosure per plan submitted. Work shall comply with 2022 building codes chapter 33. No change in use, egress and/or occupancy with this application.”
- Alteration, filed Jun 27, 2025, estimated cost $3K, described as “Installation of a temporarily heavy-duty sidewalk shed per plan submitted. Work shall comply with 2022 building codes chapter 33. No change in use, egress and/or occupancy with this application.”
- Alteration, filed Dec 5, 2024, described as “Installation of temporary fence as per plans. No change in use, egress or occupancy.”
- Alteration, filed Jan 25, 2023, described as “Curb cut application herewith filed in conjunction to NB application B00718049-I1”
- Major Renovation — Non-residential, filed Apr 14, 2022, estimated cost $470K, 4 stories, described as “Vertical enlargement of an existing 1 story plus cellar building adding 3-story school and retail mixed-use building.”
- Alteration, filed Jan 10, 2019, estimated cost $1K, described as “New 12' curb cut including splays located filed in conjunction with alt 1 job # 321748490.”

## Property taxes

- Assessment: $321,300
- 2026–27 tax: $32,560
- Market value (city estimate): $714,000
- Taxable value: $300,150
- Assessed land: $213,300
- Assessed improvements: $108,000

## Zoning

R6A: floor area ratio 1.19 built, 3.00 allowed by base zoning.

## Recent sales

- May 30, 2025: $4,100,000
- Dec 30, 2021: $4,100,000

Open-market sales since 2016, from the Department of Finance’s sales files.

## Flood zone

Current FEMA flood map: zone X, minimal flood hazard.

## In the news

[4026-4032 18th Avenue Progresses in Kensington, Brooklyn](https://newyorkyimby.com/2025/10/4026-4032-18th-avenue-progresses-in-kensington-brooklyn.html), New York YIMBY, Oct 7, 2025.

From New York City and Jersey City public records, refreshed within a day of each release. Sources: https://umarelli.org/sources. Methodology and corrections: https://umarelli.org/methodology